谁管你死心塌地情深似海
[shéi guăn nĭ sĭ xīn tā dì qíng shēn sì hăi]
Who cares if you're completely devoted with a deep sea of emotion?' ('谁管你死心塌地情深似海') conveys indifference toward someone who has shown deep, unrelenting dedication or passion, implying that such depth of feeling might go unrecognized or unappreciated by others.